package/libpng/0002-Don-t-append-prefix-to-symbol-names-in-version-script.patch

From 473fdecd9a580b45251480b8ccbbb1927c598310 Mon Sep 17 00:00:00 2001
From: Gustavo Zacarias <gustavo@zacarias.com.ar>
Date: Thu, 26 May 2016 16:27:13 -0300
Subject: [PATCH] Don't append prefix to symbol names in version script

Even if Blackfin GNU toolchain add prefix '_' to all symbols,
symbol prefix is not accepted in the link flag --version-script.
Don't append prefix in the symbols in the version script file.

Original patch by: Sonic Zhang <sonic.zhang@analog.com>

[Gustavo: update for 1.6.22]
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>

[Julien: update for 1.6.25]
Signed-off-by: Julien Boibessot <julien.boibessot@armadeus.com>

[Bernd: update for 1.6.29]
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
---
 Makefile.am | 2 +-
 Makefile.in | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 3430dca..db6a7a2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -245,7 +245,7 @@ contrib/tools/pngfix.o: pnglibconf.h
 # interfering with the symbol file format.
 SYMBOL_CFLAGS = -DPNGLIB_LIBNAME='PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0'\
 		-DPNGLIB_VERSION='@PNGLIB_VERSION@'\
-		-DSYMBOL_PREFIX='$(SYMBOL_PREFIX)'\
+		-DSYMBOL_PREFIX=''\
 		-DPNG_NO_USE_READ_MACROS -DPNG_BUILDING_SYMBOL_TABLE
 
 if DO_PNG_PREFIX
diff --git a/Makefile.in b/Makefile.in
index 4e67782..5f468d9 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -766,7 +766,7 @@ SUFFIXES = .chk .out
 # interfering with the symbol file format.
 SYMBOL_CFLAGS = -DPNGLIB_LIBNAME='PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0' \
 	-DPNGLIB_VERSION='@PNGLIB_VERSION@' \
-	-DSYMBOL_PREFIX='$(SYMBOL_PREFIX)' -DPNG_NO_USE_READ_MACROS \
+	-DSYMBOL_PREFIX='' -DPNG_NO_USE_READ_MACROS \
 	-DPNG_BUILDING_SYMBOL_TABLE $(am__append_9)
 
 # EXT_LIST is a list of the possibly library directory extensions, this exists
-- 
2.7.3